RIOS1931 logo

RIOS1931 Nature Buffalo Leather Watch Strap - Black

Handmade in Germany using traditional leather construction.

More from RIOS1931
$47.00
Strap width:18mm
Ships same or next business day • Free U.S. shipping over $59 • Easy 60-day returns

The Nature from RIOS1931 is a heavily built leather strap cut from genuine buffalo leather and finished using traditional techniques, it has a dense, textured character that suits tool watches and larger cases.

Material & feel

Genuine buffalo leather has a naturally coarse grain and firmer temper than calfskin, giving the strap a thicker, more substantial feel with visible texture and long-term durability. The strap is hypoallergenic, making it suitable for wearers with sensitive skin.

Construction follows the Art Manuel Swiss full-bugg (Rembordé) method, with the leather folded and stitched rather than edge-painted. Handmade saddler’s seams are used throughout, including, impressively, on the keepers.

Learn more in our Leather Watch Strap Guide.

Sizing & specs Length, taper, spring bars, buckle finish and more
Length:
115mm / 80mm
Measurements exclude the buckle.
Fits wrists:
7.0–8.0in

Taper:

  • 18mm lug / 18mm buckle
  • 20mm lug / 18mm buckle
  • 22mm lug / 18mm buckle
Spring bars:
Standard (free pair included)
Buckle:
Polished stainless steel
Thickness:
6.0mm→5.0mm (lug end to buckle)
Padding:
Lightly padded
Edges:
Painted
Stitching:
White
Sheen:
Semi-matte
Lining:
Leather
Apple Watch:
22mm fits Apple Watch with strap adapters. Check adapter compatibility.
Popular watch pairings

20mm strap width fits:

Wear & care

Splash only, avoid soaking and prolonged water exposure.

Clean with a soft, slightly damp cloth. Do not use leather cleaners or conditioners. Avoid prolonged moisture and direct sunlight. If damp, dry with a soft cloth and allow to air dry fully.

About the brand

RIOS1931 was founded in Augsburg in 1931 by master craftsman Riemer Oswald. Now in its third generation of family ownership, the company is one of Germany’s most established makers of leather watch straps and accessories.

RIOS1931 continues to operate with a workshop-based approach, emphasizing traditional construction methods, hand-finishing, and controlled production rather than mass manufacture. The focus remains on durability, consistency, and long-term wear rather than trend-driven design.

Shipping

Orders placed by 2:00pm PST on business days typically ship the same day.

Tracking is included with every order and emailed at shipment.

United States

  • USPS Ground Advantage: free on orders over $59, or $6.95 on orders up to $59. 3 to 6 business days.
  • USPS Priority Mail: $11.95. 2 to 4 business days.
  • USPS Priority Mail Express: $28.95. 1 to 3 business days.

International

  • USPS First Class International: $18.95. 10 to 21 business days.

For complete shipping details, see our Shipping Policy.

Returns & exchanges

Unused items may be returned or exchanged within 60 days of purchase. Please contact us before sending an exchange.

For full return details and instructions, see our Returns Policy.

  • 5 stars: 39 (93%)
  • 4 stars: 3 (7%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
P
Peng x.

Best match!

A
Andrew

I picked up the Buffalo RIOS1931 strap and it’s exactly what I was hoping for. It has a solid, sturdy feel right out of the box, but it’s still supple enough to be comfortable for everyday wear. That balance is hard to get right, and this strap nails it.

I paired it with my Jack Mason Pursuit Pro and the combination looks fantastic. It really elevates the overall look of the watch without feeling overdone.

Installation was straightforward and didn’t give me any trouble, which is always a plus.

Holben’s shipped it out quickly, which made the whole experience even better.

Definitely a strap maker I’ll keep coming back to.

B
Braden O.
Exceptional Quality Strap!

Over the moon with this. Very solid construction and nice leather, pairs well with my vintage Tudor Submariner. Fit can be tricky for some watches since the strap flares out and hits the lugs. Fantastic winter strap, feels much more expensive than it is.

A
Alex
Great pilot watch strap

I bought this strap for my Brietling Navitimer (it has unusual 23mm lug width) and I was not disappointed. Thick, tough, but soft good looking textured buffalo leather. Despite the thickness it feels extremely comfortable on the wrist. I love the rich dark brown color - unfortunately it looks almost black on my photos. The strap has stitching on the keepers - a great feature for durability. I also bought a black buckle to match my Navitimer case color. My only gripe I wish the strap was a bit longer. Excellent service Holben's, 5 stars!

A
A.A
Excellent pilot type watch strap

Terrific looking pilot/tool watch strap! Thick and tough great looking soft textured leather. Despite the thickness of the strap, it has broken in relatively quickly and is very comfortable. I bought this strap to compliment my vintage pilot Airain type 20 re-edition chrono. The strap brings out the vintage looks even more. I will be looking at adding some other color RIOS1931 straps from Holben’s in the future. Highly recommended, 5 stars!

W
W.N.
Great strap!

I thought this would be a good match for my Hanhart Minos and I was not disappointed. It is well made. I notice most straps do not have stitching on the keepers. This is a great feature for durability. I own another strap where the loops were glued and they came apart with use. The color is true to the photos. Its not easy to find a quality Made in Germany strap, by a family owned business at a very reasonable price.

S
S.R.
Nice match with Citizen Challenge Timer

Initial impression is pretty good, quality is consistent with the price.

M
M.T.
Better than I expected

I would say the quality is better than you would expect for a $40 strap. lining is made of the same leather as the rest of the band. Even though the strap is thick, it starts conforming to my wrist almost from day one. And it compliments my Seagull 1963 chrono perfectly.

G
G.G.
Excellent “Pilot Tool Watch Band”

Terrific looking Rios pilot tool band… Thick, solid, good looking leather, nothing not to like, a really tough looking leather band that will support a good sized watch…! I have purchased many watch bands from Holben’s and it’s always good…! 5 STARS

J
J.A.
Awesome strap!

Comfortable and helps balance out my mm300 which can feel top heavy on thinner straps.

T
T.M.
Awesome Strap

This is my 6th purchase from the merchant. Always great customer service & very fast shipping.
Perfect size/length for me as I have 7.3/4” wrist. Love the color which looks great on my Zeppelin watch. Lightly padded aviation style strap brings out the vintage looks even more.

P
P.M.
Nice solid strap with handmade touches

This is a nice strap! It is padded and solid without wearing as stiffly initially as, for example, a DiModell Chronissimo. I like how the stitching isn't always perfectly straight; this gives this strap a handmade feel.

One possible caution to other buyers is that it might be a bit short for you. I have the 20mm version currently on a Hamilton Khaki Automatic, and it is on the second to last hole on my 7" wrist. Even at this setting, it is comfortable to wear all day, and the tail still retains the second keeper well, but if I had bigger wrists, this might not be the case.

Another quirk to note is that the spring bar holes are also larger than usual, which can make fitting this to some lugs a bit fiddly. In fact, I couldn't get it to fit at all on my Archimede Outdoor, which is actually the watch I had in mind when buying it.

T
T.M.
Beyond expectations

I usually love the Di-Modell brand. This is my 1st time purchase of this brand! I am glad I did! The feel & look is awesome. Shipping was very fast as usual. Lots of compliments. Ordering the black one for a different watch.

T
Tommy W.
Could not be better

No complaints. An ideal strap.

D
David
Good looking strap . . .

I bought this strap to compliment an SNK mod build. The design of this watch strap is a homerun; really retro unique. The color comes off as a bit too orangey and calls into question the quality of the actual leather. Stiff leather around the spring bars and large holes for the spring bars make fitting a bit of a pain.

M
Marius I.
Beautiful Band - Runs a bit small for my 7.75" wrist when paired with a Bulova or Hamilton Pilot

Great construction and quality, soft leather texture. Beware of the strap dimension in conjunction with your watch lug width. In my case (7.75"/197mm wrist size) and paired with my Bulova lunar watch (47mm lug to lug) the strap feels short. I actually purchased another (similar / Di-Model Pilot) strap with more generous dimensions.

M
Michael
A great aviation-style band!

I originally purchased this band for a Zeppelin LZ129 moon phase watch, but fell in love with how it looked on the Bulova Lunar Pilot. The taper down from the case is wonderful and the Cognac color is fantastic. Despite the thickness of the band, it has broken in relatively quickly and is very comfortable. I will definitely be looking at adding some other color RIOS1931 bands to swap out, these are great quality!

R
Robert F.
Perfect Fit

Band dovetailed perfectly with the lugs on my Phoibos py 007c. Solid and sturdy just like the watch.

M
Mike E.
A Well Worn Watch

My dad bought me an Omega Speadmaster Auto when I graduated. I've worn it with the original bracelet almost everyday for the last twenty five years and wanted to see how a leather strap would look.

This is a really nice strap, excellent quality, very competitivly priced, spring bars included.

Took about a day to break in, really quite comfortable.

Complete your setup